This film doesn't take itself seriously, and neither did I. It's an 'old house' style mystery/comedy involving a rich matriarch, greedy relatives, a nosy neighbor, a reporting team, and ineffectual police. It's a sort of B-grade The Cat and the Canary
(which is referred to in the movie) or http://www.archive.org/details/Topper_Returns_41"
The relatives, summoned to the matriarch's country mansion at midnight after trying to have her declared mentally incompetent the day before, began dying off at one. The were no clues other than who was being murdered and who wasn't to solve the mystery. Secret passages with hidden doorways and sliding panels riddle the estate.
Wallace Ford played his usual self, here as a reporter, and breaks the fourth wall a couple of times. Marian Marsh disappoints as his secretary/love interest. Herb Vigran was good, as usual, as his photographer. Sarah Padden was great fun as the matriarch with a creepy laugh, and delivered the funniest lines in the film.
I downloaded the 698MB MPEG4 file. Video is somewhat blurry, but Ok. The audio quality was good.